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Question 31080
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Kinetic Theory and Thermodynamics: Thermodynamics MCQ

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ThermodynamicsHardQuestion 31080

Question

Gibbs free energy G = H − TS. For spontaneous process at constant T and P:
  1. A
    ΔG > 0
  2. B
    ΔG = 0
  3. C
    ΔG < 0
    Correct
  4. D
    ΔG = ΔH

Correct answer

ΔG < 0

Explanation

At constant T and P, spontaneous processes decrease Gibbs free energy: ΔG < 0. Equilibrium: ΔG = 0. Non-spontaneous: ΔG > 0.

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